Rapid prototyping uses advanced computer and laser technologies to produce complex three-dimensional prototypes in a fraction of the time required by more traditional technologies. The rapid prototyping process begins with a CAD solid model output to the appropriate RP file format. The file data is sliced into cross sections of 0.003 to 0.010 in. thickness. The cross sections are then fabricated in a layer additive process using one of the three available RP technologies.
A more effective way to build plastic scaffolds on which new tissues and even whole organs might be grown in the laboratory is being developed by an international collaboration between teams in Portugal and the UK.
Individual bone implants whose structure resembles that of the natural bone can now be produced quite easily. First, a simulation program calculates the bone's internal structure and porosity, then a rapid prototyping machine "bakes" the implant from metal powder.
A new prosthetic accessory worn on the residual limb of a transtibial (below-knee) amputee was awarded the Grand Prize at the Fourth Annual PennVention competition for student inventors at the University of Pennsylvania's Weiss Tech House.
This technology takes its lead from nature: Bones are masterpieces of lightweight construction that can withstand immense stresses.
Loughborough University researchers have been awarded more than £200,000 to develop state-of-the-art tailor made implants for people requiring facial reconstructive surgery.
Researchers at the University of Warwick have found a way of using a test devised in the 1930s, and used to gauge the stress on the superchargers in wartime spitfire fighter planes, to model the stress that surgical procedures would put on an aortic aneurysm.
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